Abstract
Optical tomography has been applied to an off-axis turbulent methane-air jet to determine the mean methane concentration throughout the mixing region. Optical tomography is a multi-angular absorption technique which involves making M line of sight absorption measurements (projections) at N angles. These MxN measurements are then used to reconstruct the original two-dimensional flow field. Absorption measurements were made on methane using the near-resonance 3.39 micron line of a He-Ne laser. Mean concentration measurements were obtained at three positions downstream of the jet exit plane. Comparisons with the results of previous workers for the axial and radial mean concentration profiles show good agreement. Additionally, the sensitivity of the reconstructed results to the number of angles and scans used is briefly described. The results demonstrate the unique capabilities of optical tomography for flow field diagnostics.
Sign-in/Register to access full text options 
Talk to us
Join us for a 30 min session where you can share your feedback and ask us any queries you have
Schedule a callDisclaimer: All third-party content on this website/platform is and will remain the property of their respective owners and is provided on "as is" basis without any warranties, express or implied. Use of third-party content does not indicate any affiliation, sponsorship with or endorsement by them. Any references to third-party content is to identify the corresponding services and shall be considered fair use under The CopyrightLaw.
